Supporting device for wiring distribution



FIG. 1 is a front, top and left side perspective view of a supporting device for wiring distribution showing my new design;

FIG. 2 is a front elevational view thereof, the rear elevational view being identical;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a right side view thereof, the left side view being a mirror image. 

The ornamental design for a supporting device for wiring distribution, as shown and described. 